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What would happen if someone stabbed your leg with a syringe full of calcium and injected the calcium directly into your muscle cells?

a. The actin active sites would stay covered by tropomyosin.

b. Cross-bridges would form in the absence of an action potential from a motor neuron.

c. Tropomyosin would bind the calcium and change the conformation of troponin.

d. Myosin would be unable to hydrolyze ATP.